How quickly does it warm up?

Most of our heaters and warmers give noticeable heat within one to two minutes. Exact times are listed in the product description.

Is it safe to leave running?

Our heaters are designed with safety features such as overheat protection, and many also have tip-over protection — check the product description for the exact features. Never cover a heater and always follow the instructions.

Will it work with UK plugs and car sockets?

Mains products come with a UK-compatible plug or adapter. Car products use the standard 12V socket found in UK cars.

How much energy does it use?

Because you only heat the space or person you need, you often use far less energy than heating the whole house. The wattage is shown on every product page.

Can I return my order?

Yes, you can return items within 30 days after delivery. Contact us at support@heathollow.com and we'll guide you through it.

How can I track my order?

As soon as your order ships you'll receive a tracking number by email.

Which payment methods do you accept?

We accept major cards, PayPal and Apple Pay. All payments are encrypted and processed securely.

How do I contact customer service?

Email us at support@heathollow.com — we usually reply within 2 working days.

Heat Hollow Flannel Electric Under Blanket with 9 Heat Settings

Name: Heat Hollow Flannel Electric Under Blanket with 9 Heat Settings
Brand: Heat Hollow
SKU: CJJT158346001AZ
Price: 49.95 GBP
Availability: InStock

£169.95 £49.95 Save 71%

Free Royal Mail Delivery Within the UK

30-Day Money-Back Guarantee

Colour — Blue

Blue

Beige

Brown

Size —

80 x 150 cm with thermostat

80 x 150 cm with smart controller

90 x 180 cm with thermostat

90 x 180 cm with smart controller

120 x 180 cm with smart controller

150 x 180 cm with thermostat

150 x 180 cm with smart controller

180 x 200 cm with thermostat

180 x 200 cm with smart controller

Only items left in stock!

Free Delivery

30-Day Returns

NOTICE: This product is one of our bestsellers and is already sold out in our physical store. If the “ADD TO BAG” button still works, it means the product is still in stock online in limited quantities.

Get into a warm bed every single night

This flannel electric under blanket runs from a mains socket and lies on your mattress beneath the sheet. Choose from nine temperature levels on the thermostat or smart controller, and it switches off automatically for peace of mind. The larger sizes come with dual controls, so each side of the bed can be set separately.

Why you'll love it

Mains powered: Plug the controller into a wall socket and the heat spreads evenly.
Nine heat levels: Fine-tune it from a gentle glow to toasty warm.
Auto power-off: Built-in protection switches it off for you.
Dual control on large sizes: Two sleepers, two settings.
Waterproof layer: Leak-proof construction protects the heating wires.

Perfect for: cold bedrooms, chilly spare rooms, caravans with hook-up and anyone who feels the cold.

We offer fast, free delivery with no minimum order value. Every order can be tracked at any time using its own tracking number.

We offer a 30-day right to return or exchange if for any reason you are not satisfied with your order.